Detect Lie

[Sabolian]

Support Issue: Role-Play
The Issue: Detect Lie
Rank: "C"
Skill: NinJutsu
Effect: User develops the ability to gauge whether another character is telling truth or lie.
Special: ---
Drawback: ---
Description: A user develops the ability to gauge whether another character is telling the truth by reading facial expressions and interpreting body language. The Investigator must be able to see and hear (but not necessarily understand) the individual under scrutiny. With a successful Sense Motive check opposed by the subject’s Acting check result, the user can tell whether the subject is deliberately and knowingly speaking a lie. This ability does not reveal the truth, uncover unintentional inaccuracies, or necessarily reveal omissions in information.
Limit: Must be a Sensor Specialist. Must have Sense Motive Skill (25 Points).

What is the point of this technique when you will be making a sense motive check either way?
Link:

[👺 Usiel]

Sense Motive doesn't actually detect lies.

[Cadoc]

The technique modifies what you are capable of doing with sense motive, normally you cannot use it to detect a lie. With this technique, you gain the ability to use it to detect lies as described in the technique.